Portion of a shoe upper



FIG. 1 is a front perspective view of a shoe showing my new design of a portion of a shoe upper;

FIG. 2 is a rear perspective view thereof; and,

FIG. 3 is a side elevational view of one side thereof.

The broken lines immediately adjacent to the shaded area represent an unclaimed boundary of the design. The broken line showing of the remainder of the shoe upper and the shoe sole is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a shoe upper, as shown and described. 